This is the Talk Allocator, an example project used for the Scala-Book
http://www.hanser.de/buch.asp?isbn=978-3-446-42399-2&area=Computer

In order to use it, you need the Simple Build Tool
http://code.google.com/p/simple-build-tool/

Quickstart:

$ sbt
> update
> jetty-run

Then open http://localhost:8080/ in your favourite browser.

Login as user user@obraun.org with password talkuser or
as admin admin@obraun.org with password talkadmin.